For example, when user wants to replace a string with nothing, replace_string: will be used and shouldn't be skipped.
Also, adding more tests regarding previous PR.
Coverage increased (+0.07%) to 95.321% when pulling 85634a8baa7c4ddc8aa2a327e83ec5179c933d0c on fix/kep-empty-site-config-value into 526c18fa130f838aadb61b15beac951872bcd963 on master.
For example, when user wants to replace a string with nothing,
replace_string:
will be used and shouldn't be skipped. Also, adding more tests regarding previous PR.